# Silver box in engine bay - 180sx **URL:** \ **Category:** SON240sx Automotive\ **Created:** [March 22, 2011, 1:35pm UTC](https://forums.speedlife.net/t/silver-box-in-engine-bay-180sx/210364 "2011-03-22T13:35:41Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![Martino](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/martino/32/5674_2.png) [@Martino](https://forums.speedlife.net/u/Martino)\ **Post date:** [March 22, 2011, 1:35pm UTC](https://forums.speedlife.net/t/silver-box-in-engine-bay-180sx/210364/1 "2011-03-22T13:35:41Z")
I’ve had no luck researching the item as I have no clue what it is and have never come across someone asking it before. This silver unit is located in the engine bay of my 180 in between the firewall and my strut tower. I have NO clue what this is. It has 2 wires leading into the harness (which I’ve yet to open up and follow back). Don’t mind the red wiring…that is my doing. ![http://img34.imageshack.us/img34/7422/photobje.jpg](http://img34.imageshack.us/img34/7422/photobje.jpg) Any insight would be nice, as I’m looking to use that spot for other things and would like to eliminate this unit if possible. Thanks, Mike ---
**Author:** ![Pants](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pants/32/5590_2.png) [@Pants](https://forums.speedlife.net/u/Pants)\ **Post date:** [March 22, 2011, 2:24pm UTC](https://forums.speedlife.net/t/silver-box-in-engine-bay-180sx/210364/2 "2011-03-22T14:24:58Z")
hmm its funny how u dont ask the people that actually know these things… u dont need it ---
**Author:** ![SaNTi](https://avatars.discourse-cdn.com/v4/letter/s/439d5e/32.png) [@SaNTi](https://forums.speedlife.net/u/SaNTi)\ **Post date:** [March 22, 2011, 2:26pm UTC](https://forums.speedlife.net/t/silver-box-in-engine-bay-180sx/210364/3 "2011-03-22T14:26:31Z")
It’s a flux capacitor. How many times I gotta tell you? ---
**Author:** ![Lil\_Mike](https://avatars.discourse-cdn.com/v4/letter/l/258eb7/32.png) [@Lil\_Mike](https://forums.speedlife.net/u/Lil_Mike)\ **Post date:** [March 22, 2011, 3:29pm UTC](https://forums.speedlife.net/t/silver-box-in-engine-bay-180sx/210364/4 "2011-03-22T15:29:20Z")
i cant see on this shitty monitor but was yours an automatic? i think that box is for the automatic, its a resistor to bring the voltage down to 6v or something along those lines. ---
**Author:** ![d1kingz1](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/d1kingz1/32/5607_2.png) [@d1kingz1](https://forums.speedlife.net/u/d1kingz1)\ **Post date:** [March 22, 2011, 5:32pm UTC](https://forums.speedlife.net/t/silver-box-in-engine-bay-180sx/210364/5 "2011-03-22T17:32:34Z")
nope, my 180 has one aswell ---
**Author:** ![Martino](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/martino/32/5674_2.png) [@Martino](https://forums.speedlife.net/u/Martino)\ **Post date:** [March 23, 2011, 8:12am UTC](https://forums.speedlife.net/t/silver-box-in-engine-bay-180sx/210364/6 "2011-03-23T08:12:51Z")
> [@Pants](#): > > hmm its funny how u dont ask the people that actually know these things… u dont need it So what is it then Peter. ---
**Author:** ![Aaj2k5](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/aaj2k5/32/5731_2.png) [@Aaj2k5](https://forums.speedlife.net/u/Aaj2k5)\ **Post date:** [March 23, 2011, 8:23am UTC](https://forums.speedlife.net/t/silver-box-in-engine-bay-180sx/210364/7 "2011-03-23T08:23:03Z")
It’s a dropping resistor for the line pressure solenoid valves on the A/T models. Both of your 180sx’s were probably swapped to 5 spd. ---
**Author:** ![Martino](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/martino/32/5674_2.png) [@Martino](https://forums.speedlife.net/u/Martino)\ **Post date:** [March 23, 2011, 8:50am UTC](https://forums.speedlife.net/t/silver-box-in-engine-bay-180sx/210364/8 "2011-03-23T08:50:45Z")
> [@Aaj2k5](#): > > It’s a dropping resistor for the line pressure solenoid valves on the A/T models. > > Both of your 180sx’s were probably swapped to 5 spd. Nope, mine was 100% not automatic. And from what I found earlier today…it may be the injector power resistor? Any confirmation from anyone? ---
**Author:** ![Aaj2k5](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/aaj2k5/32/5731_2.png) [@Aaj2k5](https://forums.speedlife.net/u/Aaj2k5)\ **Post date:** [March 23, 2011, 9:51am UTC](https://forums.speedlife.net/t/silver-box-in-engine-bay-180sx/210364/9 "2011-03-23T09:51:24Z")
An injector resistor box has 6/7 wires, no? I’ve seen multiple threads about this silver box The most common answer is the A/T box - Enjuku told a guy this is what it was. Second would be that it is tied into a variable voltage fuel pump regulator. Third is that it goes no where, just through the firewall grommet to a plug near the ecu, connected to nothing. Fourth is a few guys saying that its the injector resistor box but i’m not sure how that would work with only 2 wires… ---
**Author:** ![Martino](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/martino/32/5674_2.png) [@Martino](https://forums.speedlife.net/u/Martino)\ **Post date:** [March 23, 2011, 10:55am UTC](https://forums.speedlife.net/t/silver-box-in-engine-bay-180sx/210364/10 "2011-03-23T10:55:55Z")
It’s definitely not the A/T box, my car was never automatic. ---
**Author:** ![Aaj2k5](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/aaj2k5/32/5731_2.png) [@Aaj2k5](https://forums.speedlife.net/u/Aaj2k5)\ **Post date:** [March 23, 2011, 11:34am UTC](https://forums.speedlife.net/t/silver-box-in-engine-bay-180sx/210364/11 "2011-03-23T11:34:25Z")
Yep. Caught that the first time too. I’ll correct myself for saying it was for A/T and say that I was saying just what most people thought it was. This is an injector dropping resister. It has 5 wires. 1 per cylinder + gnd. (JECS A15-000J03) [http://www.rhdjapan.com/nissan-oem-4-cylinder-dropping-resistor-17931](http://www.rhdjapan.com/nissan-oem-4-cylinder-dropping-resistor-17931) The resistor for the line pressure solenoid valves on the A/T models **APPARENTLY** looks exactly the same and has 2 wires. (JECS A15-000G02) ---
**Author:** ![Martino](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/martino/32/5674_2.png) [@Martino](https://forums.speedlife.net/u/Martino)\ **Post date:** [March 23, 2011, 12:11pm UTC](https://forums.speedlife.net/t/silver-box-in-engine-bay-180sx/210364/12 "2011-03-23T12:11:57Z")
So from some more things I’ve read apparently that box is wired in even if your SR/180/Silvia is manual. ---
**Author:** ![Aaj2k5](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/aaj2k5/32/5731_2.png) [@Aaj2k5](https://forums.speedlife.net/u/Aaj2k5)\ **Post date:** [March 23, 2011, 12:53pm UTC](https://forums.speedlife.net/t/silver-box-in-engine-bay-180sx/210364/13 "2011-03-23T12:53:03Z")
Yep. So lose it lol. Those 2 wires probably arent hooked up to anything on the other end. ---
**Author:** ![Martino](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/martino/32/5674_2.png) [@Martino](https://forums.speedlife.net/u/Martino)\ **Post date:** [March 23, 2011, 1:12pm UTC](https://forums.speedlife.net/t/silver-box-in-engine-bay-180sx/210364/14 "2011-03-23T13:12:30Z")
> [@Aaj2k5](#): > > Yep. > > So lose it lol. Those 2 wires probably arent hooked up to anything on the other end. I have the time, I may run through my harness…who knows. LOL Thanks though. ---
**Author:** ![OneEightZero](https://avatars.discourse-cdn.com/v4/letter/o/c6cbf5/32.png) [@OneEightZero](https://forums.speedlife.net/u/OneEightZero)\ **Post date:** [March 23, 2011, 2:16pm UTC](https://forums.speedlife.net/t/silver-box-in-engine-bay-180sx/210364/15 "2011-03-23T14:16:46Z")
Sick, was about to take mine out, now i know. Thanks